Our Products

Air Conditioner Temperature Probes

 

 

 

 

We are one of the leading names in the industry that offers a qualitative range of Air Conditioner Temperature Probes and Air Conditioning Sensor Probes. These are manufactured using quality raw materials and precision techniques of production. We also offer these in varied specifications to meet the requirements of our clients.

   

  • acsensor

 

 

Applications

  • Surface temperature measurement
  • e.g: on housings and pipes
  • Inverters, UPS, Air Conditioners
  • Water Heaters, Air Warmers
  • Refrigerators, Freezers
  • Washing Machines, Driers, Boilers etc…
  • Probe: copper, brass with or without plating.

Features

  • High accuracy
  • Easy mounting
  • Good thermal coupling through metal tag
  • Thermistors encapsulated in Compact Plastic Case/SS tubes (5x25/6x25)
  • Black Twin Parallel Wire

Options available on request

  • Alternative resistance ratings
  • Rated temperatures,
  • Tolerances 
  • And Lead Lengths
  • Terminal Connectors Available upon Customer requirement

 

  • Lower Temperature : -40°C
  • Upper Temperature : 140°C
  • Maximum Permissible Current at 25°C : 10 mAmp
  • Resistance Tolerance (ΔR/R N ): ±0.5%, ±1%, ±2%, ±5%
  • Rated Temperature (T N ) : 25°C
  • Beta Tolerance (Δβ/β N ) :±1%, ±2%, ±3%,

 

  • Dissipation factor in air (δ th ): approx 1.5 mW/K
  • Thermal cooling time constant in air (τ c ): approx 15s
  • Heat capacity (C th ): approx 22.5 mJ/K
  • Thermal Response time in oil: approxx 15s

 

 

Product Series Code

 

Resistance at 25°C

 

Resistance Tolerance

 

Encapsulation

 

Type of Lead

 

Total

Length

 

Beta(β) Constant

 

STTS

 

103

 

R5

 

MT

 

E

 

L152

 

3977

Temperature Sensor type NTC Thermistor

 

10 x 103 Ω (10kΩ)

 

±5%

 

Metal Tube

 

Twin Parallel Wire

 

Total Length = 15 x 102 mm (1500 mm)

 

Beta(β) Value = 3977K

 

 

Reliability Data

 

Test

 

Standard

 

Test Conditions

 

Change in R25 (ΔR25/R25)

 

Remarks

 

Storage in

dry heat

 

IEC

68-2-2

Storage at upper

category temperature

T: 140 °C

t: 500 h

 

< 1%

 

 

No visible

damage

 

 

Storage in damp

heat, steady state

 

IEC

68 - 2- 3

Temperature of air:40 °C

Relative humidity of air: 93 %

Duration: 56 days

 

< 1%

 

No visible

damage

 

Rapid temperature

cycling

 

IEC

68 - 2- 14

Lower test temperature:– 55 °C

Upper test temperature: 155 °C

Number of cycles: 5

 

 

< 1%

 

No visible

damage

 

Long-term stability

(empirical value)

 

 

Temperature: + 100°C

Duration: 2000 h

 

< 2%

 

No visible

damage

 

Range of Products

 

Resistance at 25° C

Beta Value

R - T DATA

Resistance Tolerance

Type of Lead

1000 Ω

3560 K

  R-T

 

 

 

 

 

 

 

 

±1%, ±2%, ±5%

 

 

 

0.16 x7 Mm Conductor Diameter PTFE Insulated Multistrand Copper Wire Yellow/Blue

Or

FEP wire Multistrand Blue

Or

Black Twin Parallel Wire 0.15x11

1100 Ω

3900 K

  R-T

2000 Ω

3560 K

  R-T

2100 Ω

3900 K

 R-T 

2300 Ω

3560 K

 R-T 

2800 Ω

3900 K

 R-T 

3 kΩ

3820 K

 R-T 

5 kΩ

3970 K

 R-T 

10 kΩ

3970K

 R-T 

10 kΩ

3435 K

  R-T

30 kΩ

4000 K

 R-T 

50 kΩ

4000 K

 R-T 

20 kΩ

3970

 R-T 

50 kΩ

3970 K

  R-T

100 kΩ

 3970 K  R-T

200 kΩ

 3970 K R-T 

170 kΩ

4250 K

 R-T

 

 

Ordering Codes for AC Sensor Type NTC Thermistors

STTS *** R# %% @ L$$$ &&&&

*** = Resistance Value at 25°C (eg: 102- 1000Ω, 201 - 200Ω, 103 – 10kΩ)

# = Resistance Tolerance (eg: R1 - ± 1%, R5 - ±5%)

%% = Encapsulation (eg : M3 – 3mm Brass Ring Terminal)

@ = Type of Lead

$$$ = Total Length in mm (eg : L251 – 250mm Length, L401 – 400 mm Length)

&&&& = Beta Value (eg: 3977-3977K, 3830 – 3830K)

Encapsulation

MT –Metal Tube (SS 5x25 ,6x25 Etc)

PT – Plastic Tube

EC – Epoxy Coated

FT – Flag Type

SP – Special Type

Type of Lead

A – Blue/ Yellow PTFE Insulated Silver Plated Multistanded Copper Wire AWG 24

B – Blue/ Yellow PTFE Insulated Silver Plated Multistanded Copper Wire AWG 26

C – Blue/ Yellow PTFE Insulated Silver Plated Multistanded Copper Wire AWG 28

D – Blue/ Yellow PTFE Insulated Silver Plated Multistanded Copper Wire AWG 30

E – Twin Parallel Wire Black